deteriorate

[ dih-teer-ee-uh-reyt ]
/ dɪˈtɪər i əˌreɪt /

verb (used with or without object), de·te·ri·o·rat·ed, de·te·ri·o·rat·ing.

to make or become worse or inferior in character, quality, value, etc.
to disintegrate or wear away.

Origin of deteriorate

1565–75; < Late Latin dēteriōrātus made worse (past participle of dēteriōrāre), equivalent to Latin dēterior worse ( from + -ter- formative in adjectives of spatial orientation (cf. exterior, interior) + -ior comparative suffix) + -ātus -ate1

Related forms

de·te·ri·o·ra·tive, adjectiveun·de·te·ri·o·rat·ed, adjectiveun·de·te·ri·o·rat·ing, adjectiveun·de·te·ri·o·ra·tive, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for deteriorating

British Dictionary definitions for deteriorating

deteriorate

/ (dɪˈtɪərɪəˌreɪt) /

verb

to make or become worse or lower in quality, value, character, etc; depreciate
(intr) to wear away or disintegrate

Derived Forms

deterioration, noundeteriorative, adjective

Word Origin for deteriorate

C16: from Late Latin dēteriōrāre, from Latin dēterior worse
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for deteriorating

deteriorate

[ dĭ-tîrē-ə-rāt′ ]

v.

To grow worse in function or condition.
To weaken or disintegrate.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.